When to Plant Stevia in Agate, North Dakota (58310)

Location

Agate, North Dakota

ZIP Code

58310

USDA Zone

Last Frost

Wednesday, May 20, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Wednesday, March 11, 2026

Transplant Outdoors

Wednesday, June 3, 2026

Based on last frost Wednesday, May 20, 2026 · Zone 3b

Pro tip: Start Stevia seeds indoors 10 weeks before your last frost date, then transplant outdoors around Wednesday, June 3, 2026.

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🌿 Plant Details

Scientific Name Stevia rebaudiana

Days to Maturity 90 days

Mature Height 18-24"

Spread 18"

Type Tender Perennial

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Moderate (consistent moisture)

↔️

Spacing

18" apart

🌱

Planting Depth

0.13" deep

Seeds typically germinate in 14-21 days

Ready to Plant Stevia in Agate?

Get your seeds now so they're ready by Wednesday, March 11, 2026.

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🤝 Good Companions

PepperTomatoBasil

⚠️ Avoid Planting Near

Fennel

🤝

Full Companion Planting Guide for Stevia

See which plants help Stevia thrive, which to keep away, and raised bed layout tips →

🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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🌾 Seed Saving Guide

🟡 Moderate

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Harvest seed heads when brown and dry in fall, just before the first frost.

Processing

Strip dried flower heads, separate chaff, surface sow immediately or store cool and dry.

Seed Viability

Up to 2 years when stored cool, dark, and dry.

Pro Tip

Stevia germination rates can be low (20–50%). Surface sow and provide light — seeds need light to germinate.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 14 plants of Stevia. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Stevia in Agate, North Dakota? +

In Agate (Zone 3b), start Stevia seeds indoors around Wednesday, March 11, 2026 and transplant outdoors around Wednesday, June 3, 2026.

What is the last frost date for Agate, North Dakota? +

The average last spring frost date for Agate, North Dakota (ZIP 58310) is around Wednesday, May 20, 2026. This is based on NOAA climate normals for USDA Zone 3b.

How long does Stevia take to grow? +

Stevia typically matures in about 90 days from transplanting. In Agate, that means you can expect harvest around Wednesday, June 3, 2026 plus 90 days.

Should I start Stevia indoors or direct sow in North Dakota? +

Stevia should be started indoors 10 weeks before your last frost date. In Agate, that means starting around Wednesday, March 11, 2026.

📚 More Stevia Planting Guides

🗺️

Stevia in North Dakota

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 3b Stevia Guide

All cities in your zone · Avg dates

→

Other Plants for Agate

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Growing Stevia in Zone 3b

Stevia (Stevia rebaudiana) is a popular garden vegetable. In Agate, North Dakota, which is in USDA Hardiness Zone 3b, you should start seeds indoors around Wednesday, March 11, 2026.

Your average last frost date is Wednesday, May 20, 2026. Plan to transplant your Stevia seedlings outdoors around Wednesday, June 3, 2026, about 2 weeks after your last frost date.